tools-demo-shopping

The recorded end-to-end shopping demo (ported from scripts/demo-shopping{,-full}.sh via the script-scan pipeline), rebuilt on infrastructure-screencast: cold Chrome start, humanized Amazon+eBay search through the extension bridge, streaming ingest telemetry, first-pass analysis, top-5 enrichment, dual-AI recommendations, buy links — all while recording the screen with terminal-left/browser-right choreography. The four inline python formatters of the bash originals are absorbed into unit-tested Rust.

Tier	tools
Role	unclassified (baselined)
Path	`crates/tools/demo-shopping`
Edition	2021
Targets	tools-demo-shopping, tools_demo_shopping
Public items	11 across 0 modules
Tests	9

What it is for

Pure logic for the shopping demo: product parsing/sorting/formatting and journal-signal classification. Ports (and unit-tests) the four inline python blobs from demo-shopping-full.sh.

Capabilities

`crate root`

Pure logic for the shopping demo: product parsing/sorting/formatting and

Item
`fn extract_db_query(query : & str) -> String`
`fn search_command(query : & str) -> Value`
`fn enrich_command(urls : Value) -> Value`

`JournalSignal`

Pure logic for the shopping demo: product parsing/sorting/formatting and

Item
`pub enum JournalSignal`
`fn classify_journal(recent : & str) -> JournalSignal`

`Product`

Pure logic for the shopping demo: product parsing/sorting/formatting and

Item
`pub struct Product`
`fn parse_compare(json : & str) -> Vec <Product>`
`fn format_top(products : & Product, k : usize) -> String`
`fn top5_urls(products : & Product) -> Value`
`fn comparison_lines(products : & Product, k : usize) -> String`
`fn buy_links(products : & Product, k : usize) -> String`

How to use it

No examples/ target and no doctest in this crate's rustdoc. The tests listed under Verification are the closest executable usage.

Module structure

No public modules: the crate root is its whole surface.

Public surface

`crate root`

Item	What it is
`pub struct Product`	One product row from `/api/shopping/compare`, reduced to what the demo renders
`fn parse_compare(json : & str) -> Vec <Product>`	Parse the compare-endpoint JSON into price-sorted products (pure)
`fn format_top(products : & Product, k : usize) -> String`	The "Found N products
`fn top5_urls(products : & Product) -> Value`	Top-5 enrichment targets as the bridge's `urls` JSON (python blob #1 tail — in memory now, no `/tmp/demo_top5_urls.json` side file).
`fn comparison_lines(products : & Product, k : usize) -> String`	The AI-prompt comparison lines (python blob #3).
`fn buy_links(products : & Product, k : usize) -> String`	The buy-links box body (python blob #4).
`fn extract_db_query(query : & str) -> String`	Extract the DB-search noun from the spoken query (the bash grep list): prefer a known product noun, else the first two words
`pub enum JournalSignal`	What the recent service journal says about an in-flight search.
`fn classify_journal(recent : & str) -> JournalSignal`	Classify recent journal output (pure)
`fn search_command(query : & str) -> Value`	The shopping_search bridge command body (typed, never string-spliced).
`fn enrich_command(urls : Value) -> Value`	The enrich_products bridge command body.

No pub use re-exports: every item above is declared in this crate.

Boundary

Reaches into infrastructure.

Shares tier tools with 84 other crates: tools-advisory-reach, tools-archive-guard, tools-artifact-scaffold, tools-ask-ai-core, tools-ask-ais, tools-ask-gemini, tools-book, tools-book-report, … (84 total).

_What this crate deliberately does NOT own is a judgment. No committed registry records one for it, so none is stated here._

Where it sits

Tier (ontology)	`tools`
Architectural role (taxonomy)	`unclassified (baselined)`
Location	`crates/tools/demo-shopping`
Vocabulary in force (lexicon)	`current`

Tier flow. Which tiers this crate's own edges cross.

flowchart LR
  n_tools["tools"] --> n_infrastructure["infrastructure"]

Dependencies

Runtime, in this workspace.

Crate	Tier	Optional	Only on
`infrastructure-screencast`	infrastructure	no	always

Runtime, from outside the workspace.

Crate	Requirement	Features	Optional	Only on
`anyhow`	`^1`	—	no	always
`serde_json`	`^1`	—	no	always

Development. None.

Build. None.

Depended on by. Nothing in this workspace.

Signal flow — what reaches this crate, and what it reaches.

flowchart LR
  SELF["tools-demo-shopping"]
  SELF -->|runtime| n_infrastructure_screencast["infrastructure-screencast"]
  classDef self fill:#1f883d,stroke:#1f883d,color:#fff;
  class SELF self;

Feature flags

No Cargo features are defined: every capability is unconditional, so no consumer can receive a half-wired crate.

Targets

Kind	Name	Source
bin	`tools-demo-shopping`	`src/main.rs`
lib	`tools_demo_shopping`	`src/lib.rs`

Error model

No public error type was detected: no public item declares a type named *Error, and no public signature returns one.

Operational characteristics

Property	Evidence
async public surface	none detected
async runtime	none detected
database access	none detected
network I/O	none detected
unsafe code	none detected
environment variables	yes

No unsafe block, unsafe fn, unsafe impl or unsafe trait was found by the parser anywhere in this crate's source.

Configuration

Variable	Read in
`API_KEY`	`src/main.rs`
`HOME`	`src/main.rs`

No workspace crate depends on this one.

Verification

Kind	Count
Unit tests	9
Integration tests	0
Examples	0
Doctests	0

Evidence by module. How often each public module is named by something executable.

Module	Tests	Examples	Consumers
`crate root`	11	0	0

What the tests establish, by name:

bridge_commands_are_typed_json_never_spliced_strings — src/lib.rs
buy_links_lists_price_and_url_per_pick — src/lib.rs
comparison_lines_carry_brand_rank_and_url — src/lib.rs
db_query_prefers_a_product_noun_else_first_two_words — src/lib.rs
journal_classification_priority_matches_the_bash_order — src/lib.rs
malformed_or_not_ok_json_yields_empty_never_panics — src/lib.rs
parse_sorts_by_landed_price_and_missing_prices_sort_last — src/lib.rs
top5_urls_skips_missing_and_defaults_unknown_site_to_amazon — src/lib.rs
top_table_formats_dollars_site_and_brand — src/lib.rs

Documentation coverage

Measure	Documented	Total
Public items with rustdoc	11	11
Public modules with a `//!` block	0	0

pie showData
    title Public items with rustdoc
    "Documented" : 11
    "No rustdoc detected" : 0

Metrics

Metric	Value
Rust source files	2
Source lines	716
Code lines	617
Public API items	11
Public modules	0
Tests	9
Examples	0
Cargo features	0
Direct runtime dependencies	3
Workspace reverse dependencies	0

pie showData
    title Public API by kind
    "enum" : 1
    "function" : 9
    "struct" : 1

pie showData
    title Rust source composition
    "Code" : 617
    "Blank or comment" : 99

Generation

Rendered by tools-corpus corpus readme from repository evidence alone, renderer schema 2, lexicon current. No model, network service or database was consulted. Regenerate with tools-corpus corpus readme --write; verify with --check.

What it is for

Capabilities

crate root

JournalSignal

Product

How to use it

Module structure

Public surface

Boundary

Where it sits

Dependencies

Feature flags

Targets

Error model

Operational characteristics

Configuration

Related capabilities

Verification

Documentation coverage

Metrics

Generation

`crate root`

`JournalSignal`

`Product`